[PATCH] D23210: [MachineSinking, RFC] Sink insert_subreg, subreg_to_reg, and reg_sequence instructions

[Wei Mi via llvm-commits]

wmi added a comment.

Quentin, I will go ahead to checkin the patch and see its peformance impact as you suggested in PR28852 and want to get an explicit approval.  Although I only have x86 platforms and only did performance evaluation on them, I remove the check for all the architectures expecting to catch more potential performance problems. I am prepared to analyze those performance problems found on other architectures.


Repository:
  rL LLVM

https://reviews.llvm.org/D23210